21304064

素因数分解:

$2^8\times {\mathrm{83219}}^1$

素因数の和:83235

約数の個数: 18

約数和(自身を含む): 42525420

約数和(自身を除く): 21221356

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 83219, 166438, 332876, 665752, 1331504, 2663008, 5326016, 10652032, 21304064]

約数ペア:

[(1, 21304064), (2, 10652032), (4, 5326016), (8, 2663008), (16, 1331504), (32, 665752), (64, 332876), (128, 166438), (256, 83219)]